Kt. Leakproof underwear keeps teens worry free without pads or tampons

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Black silhouette of a dolphin jumping above the water.Teen Vogue logo in black text on a transparent background.Black text reading 'Good Housekeeping' on a transparent background.

It’s all in the layers

Built with absorbent, leak-locking layers to keep teens dry, confident, and protected even on heavy days.

Layer 1

Moisture-wicking

Pulls fluid away from the skin instantly to help you feel dry and comfortable.

Layer 2

Super absorbent core

Locks in fluid and holds it securely. No shifting, bunching, or bulky pads.


Layer 3

Leakproof barrier

Stops leaks from passing through to your clothes or sheets.


Trusted by Parents

They work! And 2M+ pairs sold prove it.

No pads. No tampons. No diaper-like bulk.

Over 10,000 5-Star Reviews

find the perfect pair

Don't just take our word for it....

Kt is trusted by 2M+ Moms and Teens

Why I started Kt By Knix

Joanna, Founder of KT by Knix

So teens always feel fresh and in-control.

Built-in protection that feels like nothing at all:

  1. Soft top layer removes moisture & fights odor

  2. Middle layer absorbs liquid quickly

  3. Leakproof layer keeps blood from leaking through

What Our Customers Are Saying

Save 15% on the Period Emergency Kit

School is stressful enough without leaks! Make sure teens are prepared for periods with the Period Emergency Kit. Underwear absorb up to 2.5 tampons worth of blood and fit discreetly in any backpack so they can change quickly and avoid any embarrassing leaks. Perfect for teens and tweens starting their first period or managing unpredictable cycles. Comfortable, washable, and parent approved for stress free school days.

Save 15% Now